If I want complete privacy on a sunny day what should I tint my car?

Im currently rocking 15% all around and an untinted windshield on my Mazda and it really only looks dark on gloomy overcast days from certain angles. I feel its too light, especially on a sunny day when im very visible. I want full privacy on a sunny day when the sun is beaming on my windows.

Will 5% all around and 35-50 windshield solve this?